Question

The diameter of a cylinder is 2.5 inches, and the height is 7.5 inches. Which equation can be used to find V, the volume of the cylinder in cubic inches?

Answer 1

The equation that can be used to find the volume is V = π (r × 2) × h

The volume of the cylinder is 58.91 in³

What is the volume of a cylinder?

The volume of a cylinder is the amount of substance present and occupied by the cylinder.

A cylinder is a three-dimensional shape and the volume of a cylinder can be calculated by using the formula:

$\mathbf{V = \pi r^2 h}$

From the given information:

• The diameter of the cylinder = 2.5 inches
• The height of the cylinder = 7.5 inches

Recall that:

• The radius = diameter/2

• The radius = 2.5/2
• The radius = 1.25

Thus, the equation that can be used to find the volume is:

$\mathbf{V = \pi r^2 h}$

The volume of the cylinder is:

V = π (1.25)² × 7.5

V = 36.81 in³

Learn more about the volume of a cylinder here:

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